package day01;

public class MyTree<E> {
    private Node<E> root;
    private int size;
    private static class Node<E>{
        E item;
        Node<E> left;
        Node<E> right;
    }
    public boolean add(E e){
        return true;
    }
    public int size(){
        return size;
    }
    public String toString(){
        return "[]";
    }
    public boolean remove(E e){
        return true;
    }
}
